Chemistry Coal & Petroleum Part 12 (Questions) Class 8 VIII | Summary and Q&A

15.2K views
November 5, 2015
by
LearnoHub - Class 11, 12
YouTube video player
Chemistry Coal & Petroleum Part 12 (Questions) Class 8 VIII

TL;DR

This video discusses the advantages of using CNG and LPG as fuels, the process of formation of coal from dead vegetation, and the characteristics and uses of coke.

Install to Summarize YouTube Videos and Get Transcripts

Questions & Answers

Q: What are the advantages of using CNG and LPG as fuels?

CNG and LPG cause less environmental pollution, leave minimal residue when burnt, and are easy to transport through pipelines.

Q: How is coal formed from dead vegetation? What is this process called?

Coal is formed through carbonization, where dead plants buried under soil undergo high temperature and pressure, losing water and turning into coal.

Q: What is the petroleum product used for surfacing roads?

Bitumen is used for surfacing roads as it acts as a binder, creating a convolute when mixed with aggregate particles.

Q: What are the characteristics and uses of coke?

Coke is a porous black substance left after destructive distillation of coal, containing around 60% carbon. It is used as a reducing agent in steel manufacturing and is more efficient and less polluting than coal.

Summary & Key Takeaways

  • CNG and LPG fuels have advantages of causing less environmental pollution, leaving minimal residue when burnt, and being easy to transport through pipelines.

  • Coal is formed through the process of carbonization, where dead vegetation is buried under soil, undergoes high temperature and pressure, and turns into coal.

  • Coke is a porous black substance left after destructive distillation of coal, containing around 60% carbon, and is used as a reducing agent in steel manufacturing.

Share This Summary 📚

Summarize YouTube Videos and Get Video Transcripts with 1-Click

Download browser extensions on:

Explore More Summaries from LearnoHub - Class 11, 12 📚

Summarize YouTube Videos and Get Video Transcripts with 1-Click

Download browser extensions on: